CN102692694A - Optical lens group for photography - Google Patents

Optical lens group for photography Download PDF

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Publication number
CN102692694A
CN102692694A CN2011101598362A CN201110159836A CN102692694A CN 102692694 A CN102692694 A CN 102692694A CN 2011101598362 A CN2011101598362 A CN 2011101598362A CN 201110159836 A CN201110159836 A CN 201110159836A CN 102692694 A CN102692694 A CN 102692694A
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Prior art keywords
lens
optics
photography
lens group
thing side
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CN2011101598362A
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CN102692694B (en
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蔡宗翰
黄歆璇
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses

Abstract

An optical lens assembly for photographing includes, in order from an object side to an image side along an optical axis, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element with positive refractive power. The object side surface of the first lens is a convex surface, and the fourth lens is provided with at least one aspheric surface. The fifth lens element has a convex object-side surface and a concave image-side surface, and has at least one aspheric surface and at least one inflection point. The image side surface of the sixth lens element is concave and has at least one aspheric surface. By adjusting the curvature radius of the object-side surface and the image-side surface of the fifth lens element, the photographing optical lens assembly can have a miniature volume, correct aberration and obtain good resolution.

Description

The optics lens group is used in photography
Technical field
The present invention relates to a kind of optical lens group, particularly a kind of optical lens group of miniaturization.
Background technology
Recent years, along with the rise of the portable electronic product with camera function, the demand of miniaturization phtographic lens day by day improves; And the photo-sensitive cell of general phtographic lens is nothing more than being sensitization coupling element (Charge Coupled Device; And progressing greatly CCD) or two kinds of complementary matal-oxide semiconductor elements (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), along with semiconductor process techniques; Make the Pixel Dimensions of photo-sensitive cell dwindle; The miniaturization phtographic lens is the development toward high pixel field gradually, therefore, and to the also increase day by day of requirement of image quality.
Have now and be equipped on the miniaturization phtographic lens on the portable electronic product; Like United States Patent (USP) the 7th, 365, shown in No. 920; Many employing four-piece type lens arrangements are main; But because intelligent mobile phone (Smart Phone) and personal digital assistant (Personal Digital Assistant, PDA) etc. the high standard mobile device is in vogue, drives miniaturization phtographic lens soaring rapidly on pixel and image quality; Existing four-piece type lens combination can't satisfy the more phtographic lens module of high-order; Add electronic product constantly toward high-performance and lightening trend development, therefore be badly in need of a kind of being applicable on frivolous, the portable electronic product, make the image quality of portable electronic product promote and can dwindle the optical image-taking system of whole camera lens volume.
Summary of the invention
For in response to the market demand and improve the existing in prior technology problem, the present invention provides a kind of photography to use the optics lens group, effectively reduced volume, revise aberration and obtain favorable imaging quality.
The optics lens group is used in the photography that discloses an embodiment according to the present invention, along the thing side of an optical axis to comprising in regular turn that as side one has first lens, one second lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens of positive refracting power.First lens have one and are the thing side of convex surface, and the 4th lens have at least one aspheric surface.The 5th lens have one for the thing side of convex surface is a convex surface and a picture side for concave surface, and the 5th lens have at least one aspheric surface and at least one point of inflexion.The 6th lens have a picture side for concave surface, and have at least one aspheric surface.
Wherein, the thing side of the 5th lens has a radius of curvature R 9, the 5th lens have a radius of curvature R as the side 10, and satisfy following formula:
(formula 1) :-0.3＜(R 9-R 10)/(R 9+ R 10)＜0.6.
The optics lens group is used in the photography of another embodiment that discloses according to the present invention, along the thing side of an optical axis to comprising in regular turn that as side one has first lens, one second lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens of positive refracting power.First lens have one and are the thing side of convex surface, the 4th lens have one for the thing side of concave surface and one for convex surface as the side and have at least one aspheric surface.The 5th lens have one and are the thing side of convex surface and a picture side for concave surface, and have at least one aspheric surface, and are a plastic lens.The 6th lens have one and are the thing side of convex surface and a picture side for concave surface, and have at least one aspheric surface, and are a plastic lens.
The optics lens group is used in the photography that is disclosed according to the present invention, and first lens with positive refracting power can provide photography with the positive refracting power of the required part of optics lens group, help to shorten the optics total length.When the thing side of first lens is convex surface, can helps to strengthen the configuration of the positive refracting power of first lens, and then make photography become shorter with the total length of optics lens group.When the thing side of the 4th lens is concave surface, when being convex surface as the side, can helps to revise the aberration of photography with the optics lens group.When the thing side of the 5th lens is convex surface, when being concave surface as the side, can effectively adjusts the astigmatism of photography with the optics lens group.When the 6th lens be concave surface as the side time, can effectively shorten photography with the optics total length of optics lens group.When the thing side of the 6th lens be convex surface, when being concave surface as the side, can effectively correcting distorted (Distortion).
In addition, when the 5th lens had at least one point of inflexion, the light that can suppress effectively from the axle visual field was incident in the angle on the Image Sensor, and the further aberration of modified off-axis visual field.When the material of the 5th lens and the 6th lens is plastics, can effectively reduce production costs.
When above-mentioned in satisfying (formula 1), the thing side of the 5th lens with have suitable radius-of-curvature as the side, with the higher order aberratons of effective correction photography with the optics lens group.
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Description of drawings
Figure 1A is the first example structure synoptic diagram of photography with the optics lens group;
Figure 1B is incident in photography that Figure 1A the discloses longitudinal spherical aberration curve synoptic diagram with the optics lens group for the light of wavelength 486.1nm, 587.6nm and 656.3nm;
The light that Fig. 1 C, Fig. 1 D are respectively wavelength 587.6nm is incident in photography that Figure 1A the discloses astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 2 A is the second example structure synoptic diagram of photography with the optics lens group;
Fig. 2 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 2 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 2 C, Fig. 2 D are respectively wavelength 587.6nm is incident in photography that Fig. 2 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 3 A is the three example structure synoptic diagram of photography with the optics lens group;
Fig. 3 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 3 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 3 C, Fig. 3 D are respectively wavelength 587.6nm is incident in photography that Fig. 3 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 4 A is the four example structure synoptic diagram of photography with the optics lens group;
Fig. 4 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 4 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 4 C, Fig. 4 D are respectively wavelength 587.6nm is incident in photography that Fig. 4 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 5 A is the five example structure synoptic diagram of photography with the optics lens group;
Fig. 5 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 5 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 5 C, Fig. 5 D are respectively wavelength 587.6nm is incident in photography that Fig. 5 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 6 A is the six example structure synoptic diagram of photography with the optics lens group;
Fig. 6 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 6 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 6 C, Fig. 6 D are respectively wavelength 587.6nm is incident in photography that Fig. 6 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 7 A is the seven example structure synoptic diagram of photography with the optics lens group;
Fig. 7 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 7 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
Fig. 7 C, Fig. 7 D are that the light of wavelength 587.6nm is incident in photography that Fig. 7 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 8 A is the eight example structure synoptic diagram of photography with the optics lens group;
Fig. 8 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 8 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 8 C, Fig. 8 D are respectively wavelength 587.6nm is incident in photography that Fig. 8 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group;
Fig. 9 A is the nine example structure synoptic diagram of photography with the optics lens group;
Fig. 9 B is that the light of wavelength 486.1nm, 587.6nm and 656.3nm is incident in photography that Fig. 9 A the disclosed longitudinal spherical aberration curve synoptic diagram with the optics lens group;
The light that Fig. 9 C, Fig. 9 D are respectively wavelength 587.6nm is incident in photography that Fig. 9 A the disclosed astigmatism curvature of field, the distortion curve synoptic diagram with the optics lens group.
Wherein, Reference numeral
The optics lens group is used in 10,20,30,40,50,60,70,80,90 photographies
100,200,300,400,500,600,700,800,900 apertures
110,210,310,410,510,610,710,810,910 first lens
111,211,311,411,511,611,711,811,911 first lens thing sides
112,212,312,412,512,612,712,812,912 first lens are as the side
120,220,320,420,520,620,720,820,920 second lens
121,221,321,421,521,621,721,821,921 second lens thing sides
122,222,322,422,522,622,722,822,922 second lens are as the side
130,230,330,430,530,630,730,830,930 the 3rd lens
131,231,331,431,531,631,731,831,931 the 3rd lens thing sides
132,232,332,432,532,632,732,832,932 the 3rd lens are as the side
140,240,340,440,540,640,740,840,940 the 4th lens
141,241,341,441,541,641,741,841,941 the 4th lens thing sides
142,242,342,442,542,642,742,842,942 the 4th lens are as the side
150,250,350,450,550,650,750,850,950 the 5th lens
151,251,351,451,551,651,751,851,951 the 5th lens thing sides
152,252,352,452,552,652,752,852,952 the 5th lens are as the side
153,253,353,453,553,653,753,853,953 first points of inflexion
160,260,360,460,560,660,760,860,960 the 6th lens
161,261,361,461,561,661,761,861,961 the 6th lens thing sides
162,262,362,462,562,662,762,862,962 the 6th lens are as the side
163,263,363,463,563,663,763,863,963 second points of inflexion
170,270,370,470,570,670,770,870,970 infrared filters
180,280,380,480,580,680,780,880,980 imaging surfaces
182,282,382,482,582,682,782,882,982 Image Sensors
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are done concrete description:
The optics lens group is used in the photography that is disclosed according to the present invention; Be to do an explanation for example with Figure 1A earlier; To explain that having identical lens among each embodiment forms and configuration relation; And explain to have the formula of identical photography among each embodiment with the optics lens group, and other different part will be described in detail in each embodiment.
With Figure 1A is example, and photography includes with thing side to the picture side (like Figure 1A from left to right) of optics lens group 10 by optical axis in regular turn:
One has first lens 110 of positive refracting power, can provide photography with the positive refracting power of optics lens group 10 parts, helps to shorten the optics total length.First lens 110 comprise one be convex surface the first lens thing side 111 and one first lens as side 112.When the first lens thing side 111 is convex surface, can strengthen the positive refracting power of first lens 110, make photography become shorter with the total length of optics lens group 10.The material of first lens 110 is plastics, and the first lens thing side 111 and first lens are aspheric surface as side 112.
One has second lens 120 of negative refracting power, can revise the aberration of photography with optics lens group 10.Second lens 120 comprise that one second lens thing side 121 and one second lens are as side 122.The material of second lens 120 is plastics, and the second lens thing side 121 and second lens are aspheric surface as side 122.
One has the 3rd lens 130 of positive refracting power, can reduce the optical sensitive degree of lens group.The 3rd lens 130 comprise that the 3rd lens that one the 3rd lens thing side 131 and is concave surface are as side 132, to revise aberration.The material of the 3rd lens 130 is plastics, and the 3rd lens thing side 131 and the 3rd lens are aspheric surface as side 132.
One the 4th lens 140, comprise one be concave surface the 4th lens thing side 141 and be convex surface the 4th lens as side 142, to revise the aberration in the lens group.The material of the 4th lens 140 is plastics, and the 4th lens thing side 141 and the 4th lens are aspheric surface as side 142.
One the 5th lens 150, comprise one be convex surface the 5th lens thing side 151 and be concave surface the 5th lens as side 152, effectively adjust the astigmatism in the lens group.The material of the 5th lens 120 is plastics, and the 5th lens thing side 151 and the 5th lens are aspheric surface as side 152.Wherein, the 5th lens 150 can have at least one point of inflexion, and for example first point of inflexion 153 can be suppressed the angle of incidence of light degree from the axle visual field, and revise aberration.
One the 6th lens 160, comprise one be convex surface the 6th lens thing side 161 and be concave surface the 6th lens as side 162.When the 6th lens are concave surface as side 162, can be with principal point toward reach, to shorten the optics total length of lens group.When the 6th lens thing side 161 be convex surface and the 6th lens as side 162 during for concave surface, recoverable distortion (Distortion).The material of the 6th lens 160 is plastics, and the 6th lens thing side 161 and the 6th lens are aspheric surface as side 162.Wherein, the 6th lens 160 can have at least one point of inflexion, and for example second point of inflexion 163 can be suppressed the angle of incidence of light degree from the axle visual field, and revise aberration.
The photography that is disclosed according to the present invention can be satisfied following formula with optics lens group 10:
(formula 1) :-0.3＜(R 9-R 10)/(R 9+ R 10)＜0.6
Wherein, R 9Be the radius-of-curvature of the 5th lens thing side 151, R 10Be the radius-of-curvature of the 5th lens as side 152.
When above-mentioned in satisfying (formula 1), make the 5th lens thing side 151 and the 5th lens have suitable radius-of-curvature, with the higher order aberratons in effective correction lens group as side 152.
Moreover photography also comprises an aperture 100 with optics lens group 10.Aperture 100 can be arranged at before second lens 120.In addition, photography also includes an infrared filter 170 and an Image Sensor 182 in regular turn with optics lens group 10.Wherein, Image Sensor 182 is to be arranged on the imaging surface 180.
In addition, the photography with optics lens group 10 also can satisfy at least formula one of them:
(formula 2): 0.8＜f/f 1＜1.9
(formula 3): 0.75＜SD/TD＜1.10
(formula 4): 0.10＜BFL/TTL＜0.35
(formula 5): 0.1＜R 12/ f＜0.5
(formula 6): (T 23+ T 45)/T 34＜1.0
(formula 7): TTL/ImgH＜2.5
(formula 8): | f/f 4|+| f/f 5|+| f/f 6|＜1.5
(formula 9): 0.05＜(CT 2+ CT 3)/f＜0.19
(formula 10) :-0.3＜(R 7-R 8)/(R 7+ R 8)＜0.5
(formula 11): 23＜V 1-V 2＜40
Wherein, On optical axis; SD be aperture 100 to the 6th lens as the distance between the side 162, TD be the first lens thing side, 111 to the 6th lens as the distance between the side 162, BFL is that the 6th lens are as the distance between side 162 and the imaging surface 180; TTL is the distance between the first lens thing side 111 and the imaging surface 180, R 12Be the radius-of-curvature of the 6th lens as side 162, T 23Be that second lens are as the distance between 122 to the 3rd lens thing sides 131, side, T 34Be that the 3rd lens are as the distance between 132 to the 4th lens thing sides 141, side, T 45Be that the 4th lens are as the distance between 142 to the 5th lens thing sides 151, side, CT 2Be that the second lens thing side, 121 to second lens are as the distance between the side 122, CT 3Be that the 3rd lens thing side 131 to the 3rd lens are as the distance between the side 132, R 7Be the radius-of-curvature of the 4th lens thing side 141, R 8Be the radius-of-curvature of the 4th lens as side 142, ImgH is that effective sensing region of Image Sensor 182 is cornerwise half the, and f is the focal length of photography with optics lens group 10, f 1Be the focal length of first lens 110, f 4Be the focal length of the 4th lens 140, f 5Be the focal length of the 5th lens 150, f 6Be the focal length of the 6th lens 160, V 1Be the abbe number of first lens 110, V 2It is the abbe number of second lens 120.
When above-mentioned in satisfying (formula 2), the refracting power size configure of first lens 110 is balance comparatively, and the may command photography is kept the target of miniaturization with the optics total length of optics lens group 10.When above-mentioned in satisfying (formula 3), make aperture 100 have suitable position, the effect of the heart far away can be provided, to improve image quality.When above-mentioned in satisfying (formula 4), can keep enough back focal length, making can have enough utilization spaces in assembling or focusing.When satisfying (formula 5), can effectively shorten the optics total length.When satisfying (formula 6), help revising aberration.
When satisfying (formula 7), help the lens group miniaturization.When satisfying (formula 8), make the 4th lens 140, the 5th lens 150 and refracting power between the 6th lens 160 reach balance, can revise the optical sensitive degree of aberration and reduction lens group in the lens group.When satisfying (formula 9), can shorten the optics total length.When satisfying (formula 10), make the 4th lens thing side 141 and the 4th lens have suitable radius-of-curvature as side 142, be unlikely to make the aberration in the lens group excessive.When satisfying (formula 11), can revise aberration.
Wherein, photography can be glass or plastics with the material of lens in the optics lens group 10.If the material of lens is a glass, then can increase the degree of freedom of lens group refracting power configuration.If the lens material is plastics, then can reduce production costs.In addition, lens surface can be aspheric surface, and aspheric surface can be made into the shape beyond the sphere easily, obtains more control variable, in order to subduing aberration, and can effectively reduce the optics total length.
Moreover, in photographing,, represent that then lens surface is a convex surface in paraxial place if lens surface is to be convex surface with optics lens group 10; If lens surface is to be concave surface, represent that then lens surface is a concave surface in paraxial place.
In addition,, can insert at least one diaphragm, to get rid of parasitic light or to limit the imaging size of its object in response to user demand.Its diaphragm can be credit light diaphragm (Glare Stop) or field stop diaphragms such as (Field Stop), but not as limit.
The optics lens group is used in the photography that is disclosed according to the present invention, will further describe concrete scheme with following each embodiment.Wherein, the definition of parameter is following among each embodiment: Fno is the f-number of photography with the optics lens group, and HFOV is photography half with maximum visual angle in the optics lens group.In addition, the aspheric surface described in each embodiment is capable of using but be not limited to following aspheric surface equation (formula ASP) expression:
X ( Y ) = ( Y 2 / R ) / ( l + sqrt ( 1 - ( 1 + k ) * ( Y / R ) 2 ) ) + Σ i ( Ai ) * ( Y i )
Wherein, X is to be selecting of Y apart from optical axis on the aspheric surface and to be tangential on the relative height of the tangent plane on summit on the aspheric surface optical axis; Y is that point on the aspheric curve is apart from the distance of optical axis; K is a conical surface coefficient, and Ai is an i rank asphericity coefficient, and i can be but is not limited to 4,6,8,10,12,14 and 16 in each embodiment.
< first embodiment >
Please, be the first example structure synoptic diagram of photography with the optics lens group with reference to shown in Figure 1A.
First lens 110 of present embodiment have positive refracting power, and second lens 120 have negative refracting power, and the 3rd lens 130 have positive refracting power, and the 4th lens 140 have positive refracting power, and the 5th lens 150 have negative refracting power, and the 6th lens 160 have negative refracting power.Wherein, the first lens thing side 111 is a convex surface, and the 3rd lens are concave surface as side 132, and the 4th lens thing side 141 is a concave surface, and the 4th lens are convex surface as side 142.The 5th lens thing side 151 is a convex surface, and the 5th lens are concave surface as side 152.The 6th lens thing side 161 is a convex surface, and the 6th lens are concave surface as side 162.Wherein, the 5th lens 150 can have 2 first points of inflexion, 153, the six lens 160 can have 2 second points of inflexion 163, and aperture 100 can be arranged between first lens 110 and second lens 120.
Photography is tabulated shown in the 1-1 with the detailed data of optics lens group 10 as follows:
Figure BSA00000518249600082
Figure BSA00000518249600091
Table 1-1
1-1 can know that first lens, 110 to the 6th lens 160 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 1-2 that tabulates:
Figure BSA00000518249600092
Figure BSA00000518249600101
Table 1-2
In addition, from table 1-1, can extrapolate the described content of table 1-3:
Figure BSA00000518249600102
Table 1-3
1-3 can know (R by table 9-R 10)/(R 9+ R 10) meet (formula 1) scope.F/f 1Meet (formula 2) scope.SD/TD meets (formula 3) scope.BFL/TTL meets (formula 4) scope.
R 12/ f meets (formula 5) scope.(T 23+ T 45)/T 34Meet (formula 6) scope.TTL/ImgH meets (formula 7) scope.| f/f 4|+| f/f 5|+| f/f 6| meet (formula 8) scope.(CT 2+ CT 3)/f meets (formula 9) scope.(R 7-R 8)/(R 7+ R 8) meet (formula 10) scope.V 1-V 2Meet (formula 11) scope.
Please with reference to shown in Figure 1B, for the light of wavelength 486.1nm, 587.6nmm and 656.3nm is incident in photography that Figure 1A discloses longitudinal spherical aberration (the Longitudinal Spherical Aberration) curve synoptic diagram with the optics lens group.Wherein, the solid line L in Figure 1B drawing, dotted line M and dotted line N represent the light of wavelength 486.1nm, 587.6nmm and 656.3nm respectively.Horizontal ordinate is focal position (mm), and ordinate is the entrance pupil or the iris radius of standardization (Normalized).That is to say, can find out paraxial light (ordinate is near 0) and edge light (ordinate is near the 1) difference of focal position on imaging surface 180 respectively by the longitudinal spherical aberration curve.Can know that from Figure 1B the longitudinal spherical aberration in the present embodiment is all between between-the 0.025mm to 0.040mm.
After the content of second embodiment to the, nine embodiment that state; Among Fig. 2 B, Fig. 3 B, Fig. 4 B, Fig. 5 B, Fig. 6 B, Fig. 7 B, Fig. 8 B and Fig. 9 B; Its solid line L, dotted line M, dotted line N represent the longitudinal spherical aberration curve of lambda1-wavelength 486.1nm, 587.6nm, 656.3nm respectively; Be succinct length, so give unnecessary details no longer one by one.
Again please with reference to shown in Fig. 1 C, be that light for wavelength 587.6nm is incident among Figure 1A first embodiment photography with the astigmatism curvature of field (the Astigmatic Field Curves) curve synoptic diagram of optics lens group.Wherein, dotted line T and solid line S are respectively the astigmatism curvature of field curve of meridian ellipse (Tangential Plane) and sagittal surface (Sagittal Plane).Horizontal ordinate is the position (mm) of focus, and ordinate is image height (mm).From Fig. 1 C, the astigmatism curvature of field of meridian ellipse is between between-the 0.010mm to 0.025mm, and the astigmatism curvature of field of sagittal surface is between between-the 0.025mm to 0.015mm.
After the content of second embodiment to the, nine embodiment that state; Among Fig. 2 C, Fig. 3 C, Fig. 4 C, Fig. 5 C, Fig. 6 C, Fig. 7 C, Fig. 8 C and Fig. 9 C; Its represented solid line S, dotted line T are respectively the astigmatism curvature of field curve of sagittal surface, meridian ellipse, are succinct length, so give unnecessary details no longer one by one.
Again please with reference to Fig. 1 D, be that light for wavelength 587.6nm is incident in photography that Figure 1A discloses distortion (Distortion) curve synoptic diagram with the optics lens group.Wherein, transverse axis is aberration rate (%), and Z-axis is image height (mm).Can know that from Fig. 1 D aberration rate is between 0% to 2.5%.Shown in Figure 1B to Fig. 1 D,, can revise various aberrations effectively according to above-mentioned first embodiment design.
After the content of second embodiment to the, nine embodiment that state; The distortion curve synoptic diagram of Fig. 2 D, Fig. 3 D, Fig. 4 D, Fig. 5 D, Fig. 6 D, Fig. 7 D, Fig. 8 D and Fig. 9 D; Its represented solid line G is the distortion curve for wavelength 587.6nm, is succinct length, so give unnecessary details no longer one by one.
Be noted that; Distortion that wavelength 486.1nm and 656.3nm light produce and astigmatism curvature of field curve are near distortion curve and the astigmatism curvature of field curve of wavelength 587.6nm; For avoiding the confusion of Fig. 1 C and Fig. 1 D accompanying drawing; In Fig. 1 C and Fig. 1 D figure, do not draw out distortion and astigmatism curvature of field curve that the light of wavelength 486.1nm and 656.3nm produces respectively, below second embodiment to the, nine embodiment also same.
< second embodiment >
Please with reference to shown in Fig. 2 A, be to be the photography that disclosed according to the present invention the second example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in second embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 2 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 20 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 210 of present embodiment have positive refracting power, and second lens 220 have negative refracting power, and the 3rd lens 230 have positive refracting power, and the 4th lens 240 have positive refracting power, and the 5th lens 250 have negative refracting power, and the 6th lens 260 have positive refracting power.Wherein, the first lens thing side 211 is a convex surface, and the 3rd lens are concave surface as side 232, and the 4th lens thing side 241 is a concave surface, and the 4th lens are convex surface as side 242.The 5th lens thing side 251 is a convex surface, and the 5th lens are concave surface as side 252.The 6th lens thing side 261 is a convex surface, and the 6th lens are concave surface as side 262.Wherein, the 5th lens 250 can have 2 first points of inflexion, 253, the six lens 260 can have 2 second points of inflexion 263, and aperture 200 can be arranged between the object (not drawing) and first lens 210.
Photography is tabulated shown in the 2-1 with the detailed data of optics lens group 20 as follows:
Figure BSA00000518249600121
Figure BSA00000518249600131
Table 2-1
2-1 can know that first lens, 210 to the 6th lens 260 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 2-2 that tabulates:
Figure BSA00000518249600132
Figure BSA00000518249600141
Table 2-2
In addition, from table 2-1, can extrapolate the described content of table 2-3:
Figure BSA00000518249600142
Table 2-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group second embodiment with reference to shown in Fig. 2 B.Can know that from Fig. 2 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.010mm to 0.025mm.
Please with reference to shown in Fig. 2 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group second embodiment.Can know that from Fig. 2 C the meridian ellipse astigmatism curvature of field is between between the 0.00mm to 0.025mm, the sagittal surface astigmatism curvature of field is between between-the 0.025mm to 0.015mm.
Please with reference to shown in Fig. 2 D, be the distortion curve synoptic diagram of photography again with optics lens group second embodiment.Can know that from Fig. 2 D aberration rate is between 0.0% to 2.5%.Of Fig. 2 B to Fig. 2 D, design according to above-mentioned second embodiment, can revise various aberrations effectively.
< the 3rd embodiment >
Please with reference to shown in Fig. 3 A, be the photography that disclosed according to the present invention the 3rd example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 3rd embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 3 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 30 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 310 of present embodiment have positive refracting power, and second lens 320 have negative refracting power, and the 3rd lens 330 have positive refracting power, and the 4th lens 340 have negative refracting power, and the 5th lens 350 have negative refracting power, and the 6th lens 360 have positive refracting power.Wherein, the first lens thing side 311 is a convex surface, and the 3rd lens are concave surface as side 332, and the 4th lens thing side 341 is a concave surface, and the 4th lens are convex surface as side 342.The 5th lens thing side 351 is a convex surface, and the 5th lens are concave surface as side 352.The 6th lens thing side 361 is a convex surface, and the 6th lens are concave surface as side 362.Wherein, the 5th lens 350 can have 2 first points of inflexion, 353, the six lens 360 can have 2 second points of inflexion 363, and aperture 300 can be arranged between first lens 310 and second lens 320.
Photography is tabulated shown in the 3-1 with the detailed data of optics lens group 30 as follows:
Figure BSA00000518249600151
Table 3-1
3-1 can know that first lens, 320 to the 6th lens 360 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 3-2 that tabulates:
Figure BSA00000518249600161
Table 3-2
In addition, from table 3-1, can extrapolate the described content of table 3-3:
Figure BSA00000518249600162
Table 3-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group the 3rd embodiment with reference to shown in Fig. 3 B.Can know that from Fig. 3 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.010mm to 0.025mm.
Please with reference to shown in Fig. 3 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 3rd embodiment.Can know that from Fig. 3 C the meridian ellipse astigmatism curvature of field is between between the 0.0mm to 0.025mm, the sagittal surface astigmatism curvature of field is between between-the 0.015mm to 0.005mm.
Please with reference to shown in Fig. 3 D, be the distortion curve synoptic diagram of photography again with optics lens group the 3rd embodiment.Can know that from Fig. 3 D aberration rate is between-1.0% to 1.0%.Of Fig. 3 B to Fig. 3 D, design according to above-mentioned the 3rd embodiment, can revise various aberrations effectively.
< the 4th embodiment >
Please with reference to shown in Fig. 4 A, be the photography that disclosed according to the present invention the 4th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 4th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 4 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 40 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 410 of present embodiment have positive refracting power, and second lens 420 have negative refracting power, and the 3rd lens 430 have positive refracting power, and the 4th lens 440 have negative refracting power, and the 5th lens 450 have positive refracting power, and the 6th lens 460 have positive refracting power.Wherein, the first lens thing side 411 is a convex surface, and the 3rd lens are concave surface as side 432, and the 4th lens thing side 441 is a concave surface, and the 4th lens are convex surface as side 442.The 5th lens thing side 451 is a convex surface, and the 5th lens are concave surface as side 452.The 6th lens thing side 461 is a convex surface, and the 6th lens are concave surface as side 462.Wherein, the 5th lens 450 can have 2 first points of inflexion, 453, the six lens 460 can have 2 second points of inflexion 463, and aperture 400 can be arranged between first lens 410 and second lens 420.
Photography is tabulated shown in the 4-1 with the detailed data of optics lens group 40 as follows:
Figure BSA00000518249600171
Figure BSA00000518249600181
Table 4-1
4-1 can know that first lens, 410 to the 6th lens 460 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 4-2 that tabulates:
Table 4-2
In addition, from table 4-1, can extrapolate the described content of table 4-3:
Figure BSA00000518249600192
Table 4-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group the 4th embodiment with reference to shown in Fig. 4 B.Can know that from Fig. 4 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.005mm to 0.050mm.
Please with reference to shown in Fig. 4 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 4th embodiment.Can know that from Fig. 4 C the meridian ellipse astigmatism curvature of field is between between the 0.0mm to 0.040mm, the sagittal surface astigmatism curvature of field is between between-the 0.005mm to 0.015mm.
Please with reference to shown in Fig. 4 D, be the distortion curve synoptic diagram of photography again with optics lens group the 4th embodiment.Can know that from Fig. 4 D aberration rate is between 0.0% to 2.0%.Of Fig. 4 B to Fig. 4 D, design according to above-mentioned the 4th embodiment, can revise various aberrations effectively.
< the 5th embodiment >
Please with reference to shown in Fig. 5 A, be the photography that disclosed according to the present invention the 5th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 5th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 5 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 50 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 510 of present embodiment have positive refracting power, and second lens 520 have negative refracting power, and the 3rd lens 530 have positive refracting power, and the 4th lens 540 have negative refracting power, and the 5th lens 550 have positive refracting power, and the 6th lens 560 have positive refracting power.Wherein, the first lens thing side 511 is a convex surface, and the 3rd lens are concave surface as side 532, and the 4th lens thing side 541 is a concave surface, and the 4th lens are convex surface as side 542.The 5th lens thing side 551 is a convex surface, and the 5th lens are concave surface as side 552.The 6th lens thing side 561 is a convex surface, and the 6th lens are concave surface as side 562.Wherein, the 5th lens 550 can have 2 first points of inflexion, 553, the six lens 560 can have 2 second points of inflexion 563, and aperture 500 can be arranged between the thing side (like the left side of Fig. 5 A) and first lens 510 of optical axis.
Photography is tabulated shown in the 5-1 with the detailed data of optics lens group 50 as follows:
Figure BSA00000518249600201
Table 5-1
5-1 can know that first lens, 510 to the 6th lens 560 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 5-2 that tabulates:
Figure BSA00000518249600202
Figure BSA00000518249600211
Table 5-2
In addition, from table 5-1, can extrapolate the described content of table 5-3:
Figure BSA00000518249600212
Table 5-3
, be to be the longitudinal spherical aberration curve synoptic diagram of photography please with optics lens group the 5th embodiment with reference to shown in Fig. 5 B.Can know that from Fig. 5 B the longitudinal spherical aberration that produces in the present embodiment is all between between the 0.0mm to 0.040mm.
Please with reference to shown in Fig. 5 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 5th embodiment.Can know that from Fig. 5 C the meridian ellipse astigmatism curvature of field is between between the 0.005mm to 0.040mm, the sagittal surface astigmatism curvature of field is between between the 0.0mm to 0.015mm.
Please with reference to shown in Fig. 5 D, be the distortion curve synoptic diagram of photography again with optics lens group the 5th embodiment.Can know that from Fig. 5 D aberration rate is between 0.0% to 1.5%.Of Fig. 5 B to Fig. 5 D, design according to above-mentioned the 5th embodiment, can revise various aberrations effectively.
< the 6th embodiment >
Please with reference to shown in Fig. 6 A, be the photography that disclosed according to the present invention the 6th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 6th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 6 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 60 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 610 of present embodiment have positive refracting power, and second lens 620 have positive refracting power, and the 3rd lens 630 have negative refracting power, and the 4th lens 640 have positive refracting power, and the 5th lens 650 have negative refracting power, and the 6th lens 660 have positive refracting power.Wherein, the first lens thing side 611 is a convex surface, and the 3rd lens are concave surface as side 632, and the 4th lens thing side 641 is a concave surface, and the 4th lens are convex surface as side 642.The 5th lens thing side 651 is a convex surface, and the 5th lens are concave surface as side 652.The 6th lens thing side 661 is a convex surface, and the 6th lens are concave surface as side 662.Wherein, the 5th lens 650 can have 2 first points of inflexion, 653, the six lens 660 can have 2 second points of inflexion 663, and aperture 600 can be arranged between the thing side (like the left side of Fig. 6 A) and first lens 610 of optical axis.
Photography is tabulated shown in the 6-1 with the detailed data of optics lens group 60 as follows:
Figure BSA00000518249600221
Figure BSA00000518249600231
Table 6-1
6-1 can know that first lens, 610 to the 6th lens 660 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 6-2 that tabulates:
Table 6-2
In addition, from table 6-1, can extrapolate the described content of table 6-3:
Figure BSA00000518249600241
Table 6-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group the 6th embodiment with reference to shown in Fig. 6 B.Can know that from Fig. 6 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.025mm to 0.015mm.
Please with reference to shown in Fig. 6 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 6th embodiment.Can know that from Fig. 6 C the meridian ellipse astigmatism curvature of field is between between-the 0.025mm to 0.020mm, the sagittal surface astigmatism curvature of field is between between-the 0.025mm to 0.015mm.
Please with reference to shown in Fig. 6 D, be the distortion curve synoptic diagram of photography again with optics lens group the 6th embodiment.Can know that from Fig. 6 D aberration rate is between 0.0% to 2.0%.Of Fig. 6 B to Fig. 6 D, design according to above-mentioned the 6th embodiment, can revise various aberrations effectively.
< the 7th embodiment >
Please with reference to shown in Fig. 7 A, be the photography that disclosed according to the present invention the 7th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 7th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 7 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 70 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 710 of present embodiment have positive refracting power, and second lens 720 have negative refracting power, and the 3rd lens 730 have negative refracting power, and the 4th lens 740 have positive refracting power, and the 5th lens 750 have positive refracting power, and the 6th lens 760 have positive refracting power.Wherein, the first lens thing side 711 is a convex surface, and the 3rd lens are concave surface as side 732, and the 4th lens thing side 741 is a concave surface, and the 4th lens are convex surface as side 742.The 5th lens thing side 751 is a convex surface, and the 5th lens are concave surface as side 752.The 6th lens thing side 761 is a convex surface, and the 6th lens are concave surface as side 762.Wherein, the 5th lens 750 can have 2 first points of inflexion, 753, the six lens 760 can have 2 second points of inflexion 763, and aperture 700 can be arranged between the thing side (like the left side of Fig. 7 A) and first lens 710 of optical axis.
Photography is tabulated shown in the 7-1 with the detailed data of optics lens group 70 as follows:
Figure BSA00000518249600251
Table 7-1
7-1 can know that first lens, 720 to the 6th lens 760 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 7-2 that tabulates:
Figure BSA00000518249600261
Table 7-2
In addition, from table 7-1, can extrapolate the described content of table 7-3:
Figure BSA00000518249600262
Table 7-3
Please, be the seven embodiment longitudinal spherical aberration curve synoptic diagram of photography with the optics lens group with reference to shown in Fig. 7 B.Can know that from Fig. 7 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.025mm to 0.010mm.
Please with reference to shown in Fig. 7 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 7th embodiment.Can know that from Fig. 7 C the meridian ellipse astigmatism curvature of field is between between-the 0.025mm to 0.020mm, the sagittal surface astigmatism curvature of field is between between-the 0.025mm to 0.015mm.
Please with reference to shown in Fig. 7 D, be the distortion curve synoptic diagram of photography again with optics lens group the 7th embodiment.Can know that from Fig. 7 D aberration rate is between 0.0% to 1.5%.Of Fig. 7 B to Fig. 7 D, design according to above-mentioned the 7th embodiment, can revise various aberrations effectively.
< the 8th embodiment >
Please with reference to shown in Fig. 8 A, be the photography that disclosed according to the present invention the 8th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 8th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 8 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 80 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 810 of present embodiment have positive refracting power, and second lens 820 have negative refracting power, and the 3rd lens 830 have negative refracting power, and the 4th lens 840 have positive refracting power, and the 5th lens 850 have positive refracting power, and the 6th lens 860 have negative refracting power.Wherein, the first lens thing side 811 is a convex surface, and the 3rd lens are concave surface as side 832, and the 4th lens thing side 841 is a concave surface, and the 4th lens are convex surface as side 842.The 5th lens thing side 851 is a convex surface, and the 5th lens are concave surface as side 852.The 6th lens thing side 861 is a convex surface, and the 6th lens are concave surface as side 862.Wherein, the 5th lens 850 can have 2 first points of inflexion, 853, the six lens 860 can have 2 second points of inflexion 863, and aperture 800 can be arranged between the thing side (like the left side of Fig. 8 A) and first lens 810 of optical axis.
Photography is tabulated shown in the 8-1 with the detailed data of optics lens group 80 as follows:
Figure BSA00000518249600271
Figure BSA00000518249600281
Table 8-1
8-1 can know that first lens, 810 to the 6th lens 860 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 8-2 that tabulates:
Table 8-2
In addition, from table 8-1, can extrapolate the described content of table 8-3:
Figure BSA00000518249600291
Table 8-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group the 8th embodiment with reference to shown in Fig. 8 B.Can know that from Fig. 8 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.025mm to 0.010mm.
Please with reference to shown in Fig. 8 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 8th embodiment.Can know that from Fig. 8 C the meridian ellipse astigmatism curvature of field is between between-the 0.030mm to 0.025mm, the sagittal surface astigmatism curvature of field is between between-the 0.030mm to 0.020mm.
Please with reference to shown in Fig. 8 D, be the distortion curve synoptic diagram of photography again with optics lens group the 8th embodiment.Can know that from Fig. 8 D aberration rate is between 0.0% to 2.0%.Of Fig. 8 B to Fig. 8 D, design according to above-mentioned the 8th embodiment, can revise various aberrations effectively.
< the 9th embodiment >
Please with reference to shown in Fig. 9 A, be the photography that disclosed according to the present invention the 9th example structure synoptic diagram with the optics lens group.Its embodiment and aforementioned first embodiment are roughly the same; And the element described in the element described in the 9th embodiment and first embodiment is identical; Its element number representes that it has identical functions or structure, for asking simplified illustration all with 9 beginnings as hundred bit digital; Only explain that below all the other exist together mutually and are not giving unnecessary details with regard to different part.
In the present embodiment, the photography use 90 of optics lens group to accept light wavelength be to be example with 587.6nm, yet above-mentioned wavelength can adjust according to the actual requirements, do not exceed with above-mentioned number of wavelengths value.
First lens 910 of present embodiment have positive refracting power, and second lens 920 have negative refracting power, and the 3rd lens 930 have negative refracting power, and the 4th lens 940 have positive refracting power, and the 5th lens 550 have negative refracting power, and the 6th lens 560 have negative refracting power.Wherein, the first lens thing side 911 is a convex surface, and the 3rd lens are convex surface as side 932, and the 4th lens thing side 941 is a concave surface, and the 4th lens are convex surface as side 942.The 5th lens thing side 951 is a convex surface, and the 5th lens are concave surface as side 952.The 6th lens thing side 961 is a convex surface, and the 6th lens are concave surface as side 962.Wherein, the 5th lens 950 can have 2 first points of inflexion, 953, the six lens 960 can have 2 second points of inflexion 963, and aperture 900 can be arranged between first lens 910 and second lens 920.
Photography is tabulated shown in the 9-1 with the detailed data of optics lens group 90 as follows:
Figure BSA00000518249600301
Table 9-1
9-1 can know that first lens, 910 to the 6th lens 960 all can be non-spherical lens from table, and can meet but be not limited to the aspheric surface of above-mentioned (formula ASP), about each aspheric parameter please with reference under the 9-2 that tabulates:
Figure BSA00000518249600302
Table 9-2
In addition, from table 9-1, can extrapolate the described content of table 9-3:
Figure BSA00000518249600312
Table 9-3
Please, be the longitudinal spherical aberration curve synoptic diagram of photography with optics lens group the 9th embodiment with reference to shown in Fig. 9 B.Can know that from Fig. 9 B the longitudinal spherical aberration that produces in the present embodiment is all between between-the 0.025mm to 0.035mm.
Please with reference to shown in Fig. 9 C, be the astigmatism curvature of field curve synoptic diagram of photography again with optics lens group the 9th embodiment.Can know that from Fig. 9 C the meridian ellipse astigmatism curvature of field is between between-the 0.015mm to 0.100mm, the sagittal surface astigmatism curvature of field is between between-the 0.025mm to 0.015mm.
Please with reference to shown in Fig. 9 D, be the distortion curve synoptic diagram of photography again with optics lens group the 9th embodiment.Can know that from Fig. 9 D aberration rate is between 0.0% to 6.0%.Of Fig. 9 B to Fig. 9 D, design according to above-mentioned the 9th embodiment, can revise various aberrations effectively.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (22)

1. the optics lens group is used in a photography, it is characterized in that, along the thing side of an optical axis to comprising in regular turn as side:
One has first lens of positive refracting power, and the thing side of these first lens is a convex surface;
One second lens;
One the 3rd lens;
One the 4th lens, the 4th lens have at least one aspheric surface;
One the 5th lens, the thing side of the 5th lens is a convex surface, the 5th lens be concave surface as the side, the 5th lens have at least one aspheric surface, the 5th lens have at least one point of inflexion; And
One the 6th lens, the 6th lens be concave surface as the side, the 6th lens have at least one aspheric surface;
Wherein, the thing side of the 5th lens has a radius of curvature R 9, the 5th lens have a radius of curvature R as the side 10, and satisfy following formula:
-0.3＜(R 9-R 10)/(R 9+R 10)＜0.6。
2. the optics lens group is used in photography according to claim 1, it is characterized in that, the 6th lens have at least one point of inflexion, and the 5th lens and the 6th lens are plastic lens.
3. the optics lens group is used in photography according to claim 2, it is characterized in that, this photography has a focal distance f with the optics lens group, and these first lens have a focal distance f 1, and satisfy following formula:
0.8＜f/f 1＜1.9。
4. the optics lens group is used in photography according to claim 3; It is characterized in that; This photography also comprises an aperture with the optics lens group; This aperture to the 6th lens as having one between the side apart from SD, the thing side of these first lens to the 6th lens as having one between the side apart from TD, and satisfy following formula: 0.75＜SD/TD＜1.10.
5. the optics lens group is used in photography according to claim 4; It is characterized in that this photography also comprises an imaging surface with the optics lens group, this photography has a back focal length BFL with the optics lens group; Between the thing side of these first lens and this imaging surface apart from TTL, and satisfy following formula:
0.10＜BFL/TTL＜0.35。
6. the optics lens group is used in photography according to claim 4, it is characterized in that, the thing side of the 4th lens is a concave surface, the 4th lens be convex surface as the side.
7. the optics lens group is used in photography according to claim 5, it is characterized in that, the 6th lens have a radius of curvature R as the side 12, this photography has a focal distance f with the optics lens group, and satisfies following formula: 0.1＜R 12/ f＜0.5.
8. the optics lens group is used in photography according to claim 5, it is characterized in that, on this optical axis, has a mirror spacing T between these second lens and the 3rd lens 23, have a mirror spacing T between the 3rd lens and the 4th lens 34, have a mirror spacing T between the 4th lens and the 5th lens 45, and satisfy following formula: (T 23+ T 45)/T 34＜1.0.
9. the optics lens group is used in photography according to claim 6; It is characterized in that; This photography also comprises an Image Sensor and an imaging surface with the optics lens group, effective sensing region of this Image Sensor cornerwise half the be ImgH, on this optical axis; Between the thing side of these first lens and this imaging surface apart from TTL, and satisfy following formula: TTL/ImgH＜2.5.
10. the optics lens group is used in photography according to claim 6, it is characterized in that, these second lens have negative refracting power, and the 3rd lens have positive refracting power, the 3rd lens be concave surface as the side, the thing side of the 6th lens is a convex surface.
11. the optics lens group is used in photography according to claim 1, it is characterized in that, this photography has a focal distance f with the optics lens group, and the 4th lens have a focal distance f 4, the 5th lens have a focal distance f 5, the 6th lens have a focal distance f 6, and satisfy following formula: | f/f 4| f/f 5|+| f/f 6|＜1.5.
12. the optics lens group is used in photography according to claim 11, it is characterized in that, on this optical axis, these second lens have a thickness C T 2, the 3rd lens have a thickness C T 3, this photography has a focal distance f with the optics lens group, and satisfies following formula: 0.05＜(CT 2+ CT 3)/f＜0.19.
13. the optics lens group is used in photography according to claim 11, it is characterized in that, the thing side of the 4th lens has a radius of curvature R 7, the 4th lens have a radius of curvature R as the side 8, and satisfy following formula :-0.3＜(R 7-R 8)/(R 7+ R 8)＜0.5.
14. the optics lens group is used in photography according to claim 11, it is characterized in that, these first lens have a chromatic dispersion coefficient V 1, these second lens have a chromatic dispersion coefficient V 2, and satisfy following formula:
23＜V 1-V 2＜40。
15. the optics lens group is used in a photography, it is characterized in that, along the thing side of an optical axis to comprising in regular turn as side:
One has first lens of positive refracting power, and the thing side of these first lens is a convex surface;
One second lens;
One the 3rd lens;
One the 4th lens, the thing side of the 4th lens is a concave surface, the 4th lens be convex surface as the side, the 4th lens have at least one aspheric surface;
One the 5th lens, the thing side of the 5th lens is a convex surface, the 5th lens be concave surface as the side, the 5th lens have at least one aspheric surface and material is plastics; And
One the 6th lens, the thing side of the 6th lens is a convex surface, the 6th lens be concave surface as the side, the 6th lens have at least one aspheric surface and material is plastics.
16. the optics lens group is used in photography according to claim 15, it is characterized in that, the 5th lens have at least one point of inflexion, and the 6th lens have at least one point of inflexion.
17. the optics lens group is used in photography according to claim 15; It is characterized in that; This photography also comprises an aperture with the optics lens group; This aperture to the 6th lens as having one between the side apart from SD, the thing side of these first lens to the 6th lens as having one between the side apart from TD, and satisfy following formula: 0.75＜SD/TD＜1.10.
18. the optics lens group is used in photography according to claim 16, it is characterized in that, these second lens have negative refracting power.
19. the optics lens group is used in photography according to claim 18, it is characterized in that, on this optical axis, these second lens have a thickness C T 2, the 3rd lens have a thickness C T 3, this photography has a focal distance f with the optics lens group, and satisfies following formula: 0.05＜(CT 2+ CT 3)/f＜0.19.
20. the optics lens group is used in photography according to claim 18, it is characterized in that, the thing side of the 4th lens has a radius of curvature R 7, the 4th lens have a radius of curvature R as the side 8, the thing side of the 5th lens has a radius of curvature R 9, the 5th lens have a radius of curvature R as the side 10, and satisfy following formula:
-0.3＜(R 7-R 8)/(R 7+ R 8)＜0.5; And
-0.3＜(R 9-R 10)/(R 9+R 10)＜0.6。
21. the optics lens group is used in photography according to claim 17; It is characterized in that; This photography also comprises an Image Sensor and an imaging surface with the optics lens group, effective sensing region of this Image Sensor cornerwise half the be ImgH, on this optical axis; Between the thing side of these first lens and this imaging surface apart from TTL, these first lens have a chromatic dispersion coefficient V 1, these second lens have a chromatic dispersion coefficient V 2, and satisfy following formula:; 23＜V 1-V 2＜40; And TTL/ImgH＜2.5.
22. the optics lens group is used in photography according to claim 17, it is characterized in that, this photography has a focal distance f with the optics lens group, and the 4th lens have a focal distance f 4, the 5th lens have a focal distance f 5, the 6th lens have a focal distance f 6, and satisfy following formula: | f/f 4|+| f/f 5|+| f/f 6|＜1.5.
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